The first-instance judgment of the Tian'ai Science and Technology trademark dispute case was awarded with a compensation amount of 150,000 yuan.

Recently, Jiangsu Tianai Technology Co., Ltd. issued a progress announcement on the trademark dispute. In November 2022, Tianai Technology filed a lawsuit against Shandong Dazhan for trademark infringement and unfair competition. After the first instance judgment, appeal, and remand for retrial, on September 17, 2025, the Intermediate People's Court of Binzhou City, Shandong Province, made a retrial first instance judgment, requiring Shandong Dazhan to stop using @cnano.com as their email suffix, cancel the relevant domain names within thirty days, and compensate Tianai Technology for economic losses and reasonable expenses of 150,000 yuan within fifteen days. The court accepted a fee of 14,700 yuan, with Tianai Technology bearing 8,000 yuan and Shandong Dazhan bearing 6,700 yuan. The case is currently in the appeal period, and the final result is pending, temporarily not affecting the normal operation and profitability of Tianai Technology.